Alternatives to Littelfuse SMCJ5.0A
Littelfuse SMCJ5.0A and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
Equivalent and substitute parts for Littelfuse SMCJ5.0A
 SMCJ5.0ALittelfuse |  SMCJ5.0A-E3/57TVishay General Semiconductor - Diodes Division |  SMCJ5.0A-13-FDiodes Incorporated | +4more | |
|---|---|---|---|---|
| FFF Compatibility | Uses the identical DO-214AB (SMC) SMD footprint with the same cathode band polarity indication.Matches physical dimensions and standard JEDEC DO-214AB package outline exactly.Matches all critical electrical performance ratings including 1500W peak power, 5V working voltage, and 9.2V clamp. | Identical package configuration and cathode-polarized 2-pin layout.Conforms to the standard DO-214AB (SMC) physical packaging dimension standards.Provides the same 5V reverse standoff, 6.4V minimum breakdown, and 1500W peak pulse power ratings. | ||
 AI Summary | SMCJ5.0A by Littelfuse: 9.2V Clamp 163A Ipp Tvs Diode Surface Mount DO-214AB (SMCJ). | This is a highly reliable direct drop-in replacement from Vishay's TransZorb series. It matches all electrical and physical parameters of the original Littelfuse part exactly. Being an active, high-volume production part, it offers a secure lifecycle path.
| Diodes Inc.'s part is an exact functional and physical equivalent of the obsolete Littelfuse device. It provides identical transient voltage protection parameters and is actively supported in high-volume production. This represents an optimal solution for continuing existing designs without modification.
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| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 SMCJ54ADiodes Incorporated | Non-stock | Obsolete | 8Alternatives availableSee Alternatives |
 SMCJ58CAonsemi | In stock | Active | 4Alternatives availableSee Alternatives |
| SMCJ70CADiodes Incorporated | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 SMCJ15CADiodes Incorporated | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
| SMCJ12Aonsemi | In stock | Active | 5Alternatives availableSee Alternatives |
 SMBJ51Aonsemi | In stock | Active | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Littelfuse SMCJ5.0A is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.
The closest qualified second sources for the Littelfuse SMCJ5.0A are the SMCJ5.0A-E3/57T (Vishay General Semiconductor - Diodes Division) and the SMCJ5.0A-13-F (Diodes Incorporated), out of 6 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Yes. The leading alternatives to the SMCJ5.0A are fit-, form- and function-compatible — the same package and pinout with matching key electrical specifications — so they drop in without PCB changes. Always confirm the parameters critical to your design against the alternative's datasheet before committing.
The SMCJ5.0A (Littelfuse) is a part in the Transient Voltage Suppressors (TVS) category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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